Walnut Medical develops oxygen concentrator based on pressure swing adsorption technology

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New Delhi, Jun 9 (PTI) Mohali-based Walnut Medical has developed a medical grade oxygen concentrator based on pressure swing adsorption (PSA) technology with an oxygen purity of above 96 per cent, the Department of Science and Technology (DST) said on Wednesday.

The concentrator will be available in 5 litres and 10 litres categories.

'Pressure swing adsorption technology separates single gases from a gas mixture. PSA is a non-cryogenic air separation (near ambient temperature separation processes) process that is commonly used in commercial practice. These two parameters are most critical for patients suffering from COVID or other respiratory problems,' the DST said.

Oxygen saturation levels of patients have been a major challenge in the treatment of COVID-19, especially in the second wave of the pandemic, the DST said.

It added that the company was supported by CAWACH 2020 grant of the National Science and Technology Entrepreneurship Development Board (NSTEDB) under the DST, and they developed the oxygen concentrator in a year to reduce dependence on imports.

Walnut Medical Oxygen Concentrator is tested for patient safety, electrical safety, electromagnetic compatibility under international safety standards.

'The complete mould design, development of all electronics, moulding, control system, sieve tower, and all related parts and accessories has been done in India. It is currently being supplied to various government, defence, military hospitals in India and is also making them available for the general public through its distribution network across India,' it added.

DST's support helped them push their endeavour forward with 5 litres and 10 litres models and invest in quality moulds to compete against products from Japan, USA, and China. An IIT-Delhi incubation team worked with them to help the technology see the light of the day, it added. PTI PR SMN SMN

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